NOTOC Wiktionary domainDomain may refer to General Territory administrative division , a non sovereign geographic area which has come under the authority of another government Public domain , a body of works and knowledge without proprietary interest Eminent domain , the power of government to confiscate private property for public use Domain board game Domain , a game published by Parker Brothers in 1983 Sciences Domain biology , a subdivision even larger than a kingdom Domain knowledge , a specific expert knowledge valid for a pre selected area of activity, such as surgery Domain specificity ... devices Domain wall , a term used in physics which can have one of two distinct but similar meanings in either magnetism or string theory Magnetic domain , a region within a magnetic material which has uniform magnetization Protein domain , a part of a protein that can exist independently of the rest of the protein chain Information technology Administrative domain , a service provider holding ... domain , the kinds of purposes for which users use a software system Broadcast domain , in computer networking, a group of special purpose addresses to receive network announcements Clock domain crossing , when a signal crosses from one clock domain into another CLR application domain , a mechanism for separating executed applications similar to a process Collision domain , a physical network segment that is a shared medium where data packets can collide with one another Data domain , in database theory, a set of all permitted values Domain software engineering , a field of study that defines ... to solve a problem in that field Domain analysis , the process of analyzing related software systems in a domain to find their common and variable parts Domain driven design , an approach to the design of software Domain engineering , the reusing of domain knowledge in the production of new software Domain model , a conceptual model of a system that describes the various entities involved and their relationships ... more details
Single domain can refer to Single domain antibody , an antibody fragment consisting of a single variable domain Single domain magnetic , state of a ferromagnet in which the magnetization does not vary across the magnet disambig ... more details
Unreferenced date August 2009 The domain aftermarket is the secondary market for Internet domain name s in which a party interested in acquiring a domain that is already registered bids or negotiates a price to effect the transfer of registration from the registered holder of that domain name. The professional pursuit of domain name speculation speculation in the domain aftermarket is known as domaining . The domain aftermarket has grown substantially, as an increasing number of generic domains names that promise marketing appeal and desirability are registered by domain warehouses, or resellers. The domain aftermarket is facilitated by auction houses which provide communication methods for buyers and sellers to interact, often anonymously, to negotiate and close a transaction. They often provide additional services, such as financial escrow services and domain parking . See also Domain Name System Domain name speculation References reflist Domain name speculation DEFAULTSORT Domain Aftermarket Category Domain name system es Mercado Secundario de Nombres de Dominio ... more details
Canonical domain may refer to CNAME record , loosely called a canonical domain name One of the simply connected Riemann surface s see uniformization theorem disambig ... more details
links. Domain parking is the registration of an Internet domain name without using it for services such as e mail or a website i.e without placing any content on the domain. This may be done to reserve the domain name for future development, to protect against the possibility of cybersquatting , or to engage in cybersquatting. Since the domain name registrar will have set name server s for the domain, the registrar or domain name reseller reseller potentially has use of the domain rather than the final registrant. Domain parking can be classified as monetized and non monetized. In the former ... or a Coming Soon message may or may not be put up on the domain by the registrar or reseller. This is a single page website that people see when they type the domain name or follow a link in a web browser . Domain names can be parked before a web site is ready for launching. Parked domain monetization Domain parking may also refer to an advertising practice known as parked domain monetization used primarily by domain name registrar s and Internet advertising publishers to monetize type in traffic visiting a parked or minimally developed domain name . The domain name will usually Domain ... click on. Usually the domain holder is paid based on how many links have been visited e.g. pay per click and on how beneficial those visits have been. The keywords for any given domain name provide clues as to the intent of the visitor before arriving. Another use of domain parking is to be a placeholder for an existing web site. The domain holder might also choose to redirect a domain to another website it has registered, either through URL redirection , domain cloaking or by pointing it as an alias of the main domain, although if this is done by the ultimate registrant, the domain ... domain monetization. A domain that was used as a website and is allowed to expire will still ... of visitor traffic initially after being claimed from the domain drop lists. As website operators ... more details
File Domain model.png thumb 320px Sample domain model for a health insurance plan A domain model in problem ... model of a domain of interest often referred to as a problem domain which describes the various ... of the model elements comprising that problem domain. Overview The domain model is created in order to represent the vocabulary and key concepts of the problem domain. The domain model also identifies the relationships among all the entities within the scope of the problem domain, and commonly identifies their attributes. A domain model that encapsulates methods within the entities is more properly associated with Object Oriented Modeling object oriented models . The domain model provides a structural view of the domain that can be complemented by other dynamic views, such as Use Case models. An important advantage of a domain model is that it describes and constrains the scope of the problem domain. The domain model can be effectively used to verify and validate the understanding of the problem domain among various stakeholders. It is especially helpful as a communication tool and a focusing ... and business teams. Usage A well thought domain model serves as a clear depiction of the conceptual fabric of the problem domain and therefore is invaluable to ensure all stakeholders are aligned in the scope and meaning of the concepts indigenous to the problem domain. A high fidelity domain model ... since the model elements comprising the problem domain can serve as key inputs to code construction ... meaning depicted in the domain model by expressing it directly in a form influenced by design or implementation concerns. The domain model is one of the central artifacts in the project development ... diagram is used to represent the domain model. In Domain driven design , the domain model Entities and Value objects is a part of the Domain layer which often also includes other concepts such as Services. It is considered an effective model for software development. See also Problem domain Logical ... more details
Two domains in Edo period Japan had the name Mori, each with a slightly different Japanese spelling. The nihongo Mori Domain Bungo Mori Domain Mori han of Bungo Province , held by the Kurushima family. The nihongo Mori Domain Izumo Mori Domain Mori han of Izumo Province , a branch of the Matsue Domain , held by the Matsudaira family. disambig ... more details
In mathematics, a GCD domain is an integral domain R with the property that any two non zero elements ... language English page 479 ref A GCD domain generalizes a unique factorization domain to the non Noetherian setting in the following sense an integral domain is a UFD if and only if it is a GCD domain ... . Properties Every irreducible element of a GCD domain is prime however irreducible elements need not exist, even if the GCD domain is not a field . A GCD domain is integrally closed , and every nonzero ... proof ref In other words, every GCD domain is a Schreier domain . For every pair of elements x , y of a GCD domain R , a GCD d of x and y and a LCM m of x and y can be chosen such that nowrap ... denotes the equivalence relation of being associate elements . If R is a GCD domain, then the polynomial ring R X sub 1 sub ,..., X sub n sub is also a GCD domain, and more generally, the group ring R G is a GCD domain for any torsion free commutative group G . ref Robert W. Gilmer, Commutative semigroup rings , University of Chicago Press, 1984, p. 172. ref For a polynomial in X over a GCD domain ... , which is valid over GCD domains. Examples A unique factorization domain is a GCD domain. Among the GCD domains, the unique factorization domains are precisely those that are also atomic domain s which ... . A B zout domain i.e., an integral domain where every finitely generated ideal is principal is a GCD domain. Unlike principal ideal domain s where every ideal is principal , a B zout domain need not be a unique factorization domain for instance the ring of entire function s is a non atomic B zout domain, and there are many other examples. An integral domain is a Pr fer domain Pr fer GCD domain if and only if it is a B zout domain. Fact date April 2009 If R is a non atomic GCD domain, then R X is an example of a GCD domain that is neither a unique factorization domain since it is non atomic nor a B zout domain since X and a non invertible and non zero element a of R generate an ideal not containing ... more details
In abstract algebra , a Schreier domain is an integrally closed integral domain where every nonzero element is primal i.e., whenever x divides yz , x can be written as x x sub 1 sub x sub 2 sub so that x sub 1 sub divides y and x sub 2 sub divides z . An integral domain is said to be pre Schreier if every nonzero element is primal. A GCD domain is an example of a Schreier domain. The term Schreier domain was introduced by P. M. Cohn in 1960s. The term pre Schreier domain is due to Muhammad Zafrullah. In general, an irreducible element is primal if and only if it is a prime element . Consequently, in a Schreier domain, every irreducible is prime. In particular, an atomic domain atomic Schreier domain is a unique factorization domain this generalizes the fact that an atomic GCD domain is a UFD. References Cohn, P.M., http www.lohar.com researchpdf bezout rings and their subrings.pdf Bezout rings and their subrings , 1967. Zafrullah, Muhammad, http www.lohar.com researchpdf on a property of pre schreier domains.pdf On a property of pre Schreier domains , 1987. Category Ring theory Abstract algebra stub ... more details
The Lost Domain may refer to Le Grand Meaulnes , a novel by Alain Fournier one of several English translations of the title The Lost Domain 2005 film Le domaine perdu , a 2005 movie directed by Raoul Ruiz loosely based on the above novel DEFAULTSORT Lost Domain disambig ... more details
Search domain is a network setting under the Domain Name System DNS tab in Mac OS X , next to DNS server settings. It restricts the domain when looking up an address. ref http docs.info.apple.com article.html?path Mac 10.6 en 14127.html Editing DNS and search domain settings . Apple.com ref For example, if the search domain was wikipedia.org, typing en in the browser will redirect the user to en.wikipedia.org . Setting this field to .local allows the user to override default settings by the Internet Service Provider ISP . Reference reflist See also Domain Name System network stub Category Mac OS X ... more details
Unreferenced date December 2009 Domain knowledge is that valid knowledge used to refer to an area of human endeavour, an autonomous computer activity, or other specialized discipline. Domain expert Specialists and experts use and develop their own domain knowledge. If the concept domain knowledge or domain expert is used, we emphasize a specific domain which is an object of the discourse interest problem. Knowledge capture More particular, in software engineering , domain knowledge is knowledge about the environment in which the target system operates, for example, software agent s. Domain knowledge is important, because it usually must be learned from software users in the domain as domain specialists experts , rather than from software developers. Expert s domain knowledge frequently informal and ill structured is transformed in computer programs and active data, for example in a set of rules in knowledge bases, by knowledge engineer s. Communicating between end users and software developers is often difficult. They must find a common language to communicate in. Developing enough shared vocabulary to communicate can often take a while. The same knowledge can be included in different domain knowledge. Knowledge which may be efficient in every domain is called domain independent knowledge, for example logic s and mathematics. Operations on domain knowledge are performed by meta knowledge . Literature Hj rland, B. & Albrechtsen, H. 1995 . Toward A New Horizon in Information Science Domain Analysis. Journal of the American Society for Information Science, 1995, 46 6 , 400 425. See also Domain engineering Knowledge engineering Artificial Intelligence DEFAULTSORT Domain Knowledge Category Knowledge az Elm sah si de Wissensgebiet ... more details
Unreferenced date March 2011 Original research date April 2011 Domain hijacking or domain theft is the act of changing the registration of a domain name without the permission of its original registrant. This can be financially devastating to the original domain name holder, who may have derived commercial income from a website hosted at the domain or conducted business through that domain s e mail accounts. Additionally, the hijacker can use the domain name to facilitate illegal activity such as phishing ... in passwords. Exploiting expiration While not technically domain hijacking, domain sniping is a related practice of a bad actor registering a domain name whose registration has lapsed. Although domain registrars often make multiple attempts to notify a registrant of a domain name s impending ... domain holders. Domain name registrar Registrar s and ISP s now normally have measures such as a Redemption ... faq460.html Restoring a Deleted Domain Name from the Redemption Grace Period ref but unless the original ... without any form of recourse in getting the domain name back. Description Domain hijacking can be done in several ways, generally by exploiting a vulnerability in the domain name registration system or through social engineering . The most common tactic used by a domain hijacker is to use acquired personal information about the actual domain owner to impersonate them and persuade the domainDomain name registry registrar to modify the registration information and or transfer the domain to another registrar, a form of identity theft . Once this has been done, the hijacker has full control of the domain ... be more difficult if the domain name was transferred to another registrar, particularly if that registrar resides in another country. In some cases the original domain owner is not able to regain control over the domain. The legal status of domain hijacking remains unclear. It is analogous with theft, in that the original owner is deprived of the benefits of the domain, but theft traditionally ... more details
File Castle in Inuyama.JPG thumb right Inuyama Castle The nihongo Inuyama Domain Inuyama han was a han system feudal domain in Owari Province , Japan . It was not officially designated as a domain by the Tokugawa Shogunate , when major domains were established, but was finally designated a domain in 1868. The domain was controlled from Inuyama Castle , which is located in present day Inuyama, Aichi Inuyama , Aichi Prefecture . History Originally a sub domain of the Owari Domain , which was ruled by the Tokugawa clan s Owari branch , the Inuyama Domain gained independence when it was recognized in 1868. Just three years after the Inuyama Domain was officially recognized, the domain system was abolished and the area became Inuyama Prefecture. Three months after that, it was merged into Nagoya Prefecture, which eventually became modern day Aichi Prefecture. Leaders The Inuyama Domain was controlled by three families Ogasawara, Hiraiwa, and Naruse. Ogasawara clan Ogasawara Yoshitsugu Hiraiwa clan Hiraiwa Chikayoshi Naruse clan Naruse Masanari Naruse Masatora Naruse Masachika Naruse Masayuki Naruse Masamoto Naruse Masanori Naruse Masanaga Naruse Masazumi Naruse Masamitsu See also Han system List of Han References reflist japan hist stub Category Domains of Japan fr Domaine d Inuyama ja zh ... more details
Merge Vanity URL date April 2011 In the Domain Name System DNS , a vanity domain is a domain name whose purpose is to express the individuality of the person on whose behalf it is registered. This contrasts with domain names which resolve to an organisation e.g. a company or a service that organisation offers. Vanity domains may be compared with Vanity plate vanity car registration plates , which similarly identify their owner as an individual and not just someone relying on another organisation s services. A subdomain of an ISP s domain that is aliased to an individual user account is a vanity domain. Other definitions include the Free On line Dictionary of Computing defines it as A domain you register for the sole purpose of having your own domain so you can have an easily remembered URL and e mail address , ref cite web url http foldoc.org vanity domain title Vanity domain date 11 September ... defines it as An Internet domain, particularly in the .com or .org top level domains, apparently ... html V vanity domain.html title Vanity domain author date work publisher CATB.org accessdate 16 September 2010 vanity domain ref The Sun Sun Java System Messaging Server iPlanet Messaging Server uses code msgVanityDomain code to set up a domain name for e mail use which is not fully hosted. These uses apply primarily to regular domain names registered at the highest allowed level rather than subdomains although, technically speaking, a second level domain is actually a subdomain of its top level domain . Because vanity domains are operated for or on behalf of individuals, they typically will not offer the full complement of services an organisational domain name or rather, the Host network ... record identifying a mail server accepting e mail for that domain which may itself be an e mail ... when registered at the highest level allowed by the domain name registrar registrar offer the advantage ... service provider. References Reflist Category Domain name system ... more details
There were three han Japan han s or feudal domain in Japan called nihongo Fuch Sunpu Domain in Shizuoka, Shizuoka Shizuoka , Shizuoka Prefecture Fuch Domain Hitachi in Ishioka, Ibaraki Ishioka , Ibaraki Prefecture Fuch Domain Tsushima in Tsushima, Nagasaki Tsushima , Nagasaki Prefecture References Japanese Wikipedia disambig ja ... more details
nihongo Kisai Domain Kisai han was a Japanese Han Japan domain of the Edo period , located in Musashi Province modern day Kisai, Saitama . The domain existed until 1632, when the last lord, kubo Tadamoto , was moved to the Kan Domain , and the Kisai holdings were then merged into the territory of the Kawagoe Domain . List of lords Matsudaira clan Matsui Matsudaira clan Fudai 20,000 koku Matsudaira Yasushige Yasushige kubo clan Fudai 20,000 koku Tadatsune Tadamoto References japan hist stub Category Domains of Japan fr Domaine de Kisai ja ... more details
The nihongo S ma Domain S ma han was a Japanese Han country subdivision domain of the Edo period , located in Mutsu Province . It was ruled by the S ma clan . The domain was also known as the nihongo S ma Nakamura Domain S ma Nakamura han References http www.asahi net.or.jp me4k skri han mutudewa souma.html uetsu Reppan D mei DEFAULTSORT Soma Domain Category Domains of Japan japan hist stub fr Domaine de S ma ko ja ... more details
Domain engineering , also called product line engineering , is the entire process of reusing domain knowledge ... reuse . A key idea in systematic software reuse is the application domain , a software area that contains systems sharing commonalities. Most organizations work in only a few domain software engineering domains . They repeatedly build similar systems within a given domain with variations to meet ... savings may be achieved by reusing portions of previous systems in the domain to build new ones. The process ... the systems in the domain is called domain analysis . This information is captured in models that are used in the domain implementation phase to create artifacts such as reusable components, a domain specific language , or application generators that can be used to build new systems in the domain. Purpose Domain engineering is designed to improve the quality of developed software products through reuse of software artifacts. ref name Frakes 2 Frakes, p.2 ref Domain engineering shows that most ... field. ref name Frakes 1 Frakes, p.1 ref As a result, through the use of domain engineering, businesses ... that the use of domain specific languages allowed code size, in both number of method computer science ... of lines of code to be reduced by nearly 75 . ref name Batory 19 Batory, p.19 ref Domain engineering ... development cycle , domain engineering also focuses on the three primary phases analysis ... ref This produces not only a set of source code software implementation components relevant to the domain ... Phases of domain engineering File Domain Engineering vs Application Engineering.svg Domain engineering as compared to application engineering. The outputs of each phase of domain engineering feed into both subsequent phases of domain engineering as well as corresponding phases in application engineering. thumb 330px Domain engineering, like application engineering, consists of three primary phases ..., domain engineering focuses on a family of systems. ref name Cza 21 A good domain model serves as a reference ... more details
In software engineering , domain analysis , or product line analysis , is the process of analyzing related software systems in a Application domaindomain to find their common and variable parts. It is a model of wider business context for the system. The term was coined in the early 1980s by James Neighbors. ref Neighbors, J.M. http www.bayfronttechnologies.com l02draco.htm diss80 Software Construction using Components . Technical Report 160, Department of Information and Computer Sciences, University ... Domain analysis is the first phase of domain engineering . It is a key method for realizing systematic ... dl oosdw3 ch13.html Domain Analysis , chapter 13, Object Oriented System Development . Addison Wesley. ISBN 0 201 56355 X. ref Domain analysis produces domain model s using methodologies such as domain ... , which describe all of the system s in a domain. Several methodologies for domain analysis have ... Transactions on Software Engineering, 31 7 , July, pp. 529 536. ref The products, or artifacts , of a domain ... software application s. This approach to domain analysis is sometimes called model driven engineering . In information science , the term domain analysis was suggested in 1995 by Birger Hj rland and H. Albrechtsen. ref B. Hj rland, H. Albrechtsen, Toward a New Horizon in Information Science Domain ... 425 ref ref http www.iva.dk bh core 20concepts 20in 20lis articles 20a z Domain 20analysis.htm Birger Hj rland s definition of domain analysis ref Domain analysis techniques Several domain analysis ... processes. Some of them are as follows DARE Domain Analysis and Reuse Environment http wfrakes.wordpress.com ... Domain Analysis FODA http www.sei.cmu.edu reports 90tr021.pdf IDEF0 for Domain Analysis http 4c.ucc.ie web upload publications article IDEF0Simran.pdf References references See also Domain engineering Feature Model Product Family Engineering Domain specific language Model driven engineering DEFAULTSORT Domain Analysis Category Software design Soft eng stub it Analisi del dominio nl Domeinanalyse ... more details
Image Symphony in the Domain 2007.jpg thumb 250px Symphony in the Domain Symphony in The Domain formerly known as Symphony Under the Stars is the second of three open air concert s that are held in The Domain, Sydney Summer Sounds and Symphony, as part of Sydney Festival , and Mazda Opera in The Domain. Symphony in The Domain is traditionally held on the third Saturday evening of January, performed by the Sydney Symphony . In 2007, the event celebrated its 25th anniversary , with a record crowd of 85 000 people. It is preceded by Summer Sounds in The Domain formally Jazz in The Domain the previous Saturday, and followed by Mazda Opera in The Domain . All the concerts are free. Symphony in The Domain presents a wide variety of classical music, most often including contemporary classical music by Australian composers. The event is enormously popular with both locals and tourists , and has become a much loved and celebrated part of Sydney Festival , as well as Sydney summer culture in general. Families especially make a night of it, many arriving with blankets and picnic banquets, making for a very relaxed atmosphere. As with all the Domain concerts, Symphony in The Domain has a performance time of two and a half hours, although entertainment is provided for people who arrive early to secure vantage areas closer to the main stage . Keen classical music lovers have been known to camp overnight to mark their spots on the massive lawns of The Domain . On some years, crowds are welcomed to the event by the Lord Mayor of Sydney , and the Premier of NSW . The concert always traditionally ends with Tchaikovsky s 1812 Overture , with the finale complemented by cannons, a fireworks display above The Domain , and with the bells of St Mary s Cathedral, Sydney St Mary s Cathedral tolling in the background. External links http www.sydneyfestival.org.au The official Sydney Festival website http www.sydneyfestivalblog.com The Sydney Festival Blog Site http www.news.com.au dailytelegraph ... more details
Domain sniping is the practice of an individual registering a domain name whose registration has lapsed in the immediate moments after expiry. This practice has largely been rendered moot through ICANN s addition of the Redemption Grace Period RGP , which allows registrants 30 days to reclaim their domain name. ref http domains.kiwihosting.net.nz kb servlet KBServlet faq460.html Restoring a Deleted Domain Name from the Redemption Grace Period ref By law there are no perpetual rights to domain names after payment of registration fees lapses, aside from trademark rights granted by common law or statute. Although domain registrars often make multiple attempts to notify a registrant of a domain name s impending expiration, a failure on the part of the original registrant to provide the registrar with accurate contact information can make an unintended registration lapse possible. Unless the original registrant holds a trademark or other legal entitlement to the name, they are often left without any form of recourse in getting the domain name back. It is incumbent on registrants to be proactive in managing their name registrations and to be good stewards of their names. Prior to the Redemption Grace Procedure RGP individuals could engage in domain sniping in order to extort money from the original registrant to buy the name back. The addition of RGP has largely abated the ability to snipe names and therefore has moved the battle for expiring domain names to the domain registrar level, where companies such as GoDaddy or eNom retain names for auction through services such as TDNAM or Snapnames. References reflist Domain parking Category Domain name system Category Cyberspace Category Internet ethics compu domain stub ... more details
Infobox protein family Symbol HEPN Name HEPN domain image PDB 1ufb EBI.jpg width caption crystal structure of tt1696 from thermus thermophilus hb8 Pfam PF05168 Pfam clan CL0291 InterPro IPR007842 SMART PROSITE MEROPS SCOP 1o3u TCDB OPM family OPM protein CAZy CDD In molecular biology, the HEPN domain higher eukaryotes and prokaryotes nucleotide binding protein domaindomain is a region of approximately 110 amino acids found in the C terminus of sacsin , a chaperonin implicated in an early onset neurodegenerative disease in human, and in many bacterial and archeabacteria archeabacterial protein s. There are three classes of proteins with HEPN domains Single domain HEPN protein proteins found in many bacteria. Two domain proteins with N terminal nucleotidyltransferase NT and C terminal HEPN protein domain domains . This N terminal NT domain belongs to a large family of NTs, which includes several classes of enzyme s that are responsible for some types of bacteria bacterial resistance to aminoglycosides . These enzymes deactivate various antibiotic s by transferring a nucleotidyl group to the drug. A multidomain sacsin protein in genomes of fish and mammal s. The HEPN domain is located at the C terminus of the protein, directly after the DnaJ domain. The crystal structure of the HEPN domain from the TM0613 protein of Thermotoga maritima indicates that it is structurally similar to the C terminal all alpha helical domain of kanamycin nucleotidyltransferases KNTases . It is composed of five alpha helices, three of which form an up and down helical bundle, with a pair of short Alpha helix helices on the side. The distant structural similarity suggests that the HEPN domain might be involved in nucleotide binding. ref name pmid12765831 cite journal author Grynberg M, Erlandsen H, Godzik A title HEPN a common domain in bacterial drug resistance and human neurodegenerative proteins journal Trends Biochem. Sci. volume 28 issue 5 pages 224 6 year 2003 month May pmid 12765831 doi ... more details
Image Star shaped.png right thumb A star domain equivalently, a star convex or star shaped set is not necessarily convex set convex in the ordinary sense. Image Not star shaped.svg right thumb An annulus mathematics annulus is not a star domain. In mathematics , a Set mathematics set math S math in the Euclidean space R sup n sup is called a star domain or star convex set , star shaped or radially convex set if there exists x sub 0 sub in S such that for all x in S the line segment from x sub 0 sub to x is in S . This definition is immediately generalizable to any real number real or complex number complex vector space . Intuitively, if one thinks of S as of a region surrounded by a wall, S is a star domain if one can find a vantage point x sub 0 sub in S from which any point x in S is within line of sight. Examples Any line or plane in R sup n sup is a star domain. A line or a plane without a point is not a star domain. If A is a set in R sup n sup , the set math B ta a in A, t in 0,1 math obtained by connecting any point in A to the origin is a star domain. Any non empty convex set is a star domain. A set is convex if and only if it is a star domain with respect to any point in that set. A cross shaped figure is a star domain but is not convex. Properties The closure topology closure of a star domain is a star domain, but the interior topology interior of a star domain is not necessarily a star domain. Any star domain is a contractible space contractible set, via a straight line homotopy . In particular, any star domain is a simply connected set . The union and intersection of two star domains is not necessarily a star domain. A nonempty open star domain S in R sup n sup is diffeomorphism diffeomorphic to R sup n sup . See also Art gallery problem Star polygon &mdash an unrelated term Star shaped polygon Balanced set References Ian Stewart, David Tall, Complex Analysis . Cambridge University Press, 1983, ISBN 0 521 28763 4, mr 0698076 C.R. Smith, A characterization ... more details
of searches performed for the domain name or its component words in recent history can indicate its ... to type and less prone to typing errors. Pronounceability A domain whose proper spelling is clear ... or misspellings Domain names resembling other domains except for a typographical error can be valued ... trademark laws. Age A long established domain tends to be more valuable. Singular and plural ... of previous similar domains can suggest the current market value of a domain name. References reflist External links http www.dmoz.org Computers Internet Domain Names For Sale or Auction Appraisal List of domain appraisal services at DMOZ Category Domain name system Category Valuation ... more details
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